Author

Ziyu Gan

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Preprint Jul 2026

Extremizers for a trilinear Stein-Weiss inequality with nonnegative weights

We study extremizers for a trilinear Stein-Weiss inequality on $\mathbb{R}^n$. Within the known boundedness region, we prove attainment under two additional assumptions: all six weight exponents are nonnegative, and at least one pair of Lebesgue exponents is admissible. The proof combines symmetric decreasing rearrange...

Chengcheng Wu, Ziyu Gan, Yong-Liang Zhou · 0 citations